662 KEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Trachydermon ruber Carpenter. Plate XXY, fig. 1G6. 



Chiton ruber Lowe, Zool. Journ., vol. ii, p. 101, Plate 5, fig. 2 (t. Gonld) ; Goulds 

 Invert., ed. i, p. 149, fig. 24 ; ed. ii, p. 260, fig. 523. Leptochiton ruber H. and 

 A. Adams, Genera, vol i, p. 473 ; this Report, j). 399. 



Off New London, Connecticut, to tlie Arctic Ocean and northern 

 coasts of Europe. Eare and local in the colder outer waters south of 

 Cape Cod. Off New London, 8 fathoms ; off Watch Hill, 5 fathoms^ 

 Stonington (Linsley). Very common in Casco Bay and Bay of Fundy^ 

 from low- water mark to 40 fathoms. 



Dr. Carpenter assures me that this species should be referred ta 

 Trachydermon. 



Linsley records " Chiton fulminatus Couth." (= C. marmoreus Gould, 

 Invert., ed. ii, p. 261, fig. 524) as from cod-fish taken off Stonington, Con- 

 necticut, but as it has not been confirmed from south of Cape Cod, this 

 must be regarded as a doubtful identification. This species is found 

 from Massachusetts Bay northward to the Arctic Ocean and northern 

 coasts of Europe. It is common in the Bay of Fundy, from low-water 

 mark to 40 fathoms, on "nullipore" {Lithothamnion). 



" Chiton albus^^ (= Trachydermon albus^ t. Carpenter) has been men- 

 tioned as from this region, but probably erroneously. White specimens 

 of (7. apiculata are often mistaken for it, when superficially examined. 

 The genuine alhus is a northern species, with about the same distribution 

 as the i)receding. It is abundant in the Bay of Fundy, from low-water 



to 80 fathoms. 



PULMONATA. 



Melampus BiDENTATUS Say. Plate XXY, figs. 169, 169a. (p. 463.) 



Journal Acad. Nat. Sciences, Philadelphia, vol. ii, p. 245, 18-^-2 ; Gould, Invert., ed. 

 ii, p. 467, fig. 721. Auricula bidentata Gould, Invert., ed. i, p. 117, fig. 131. Me- 

 lampus corneus Stimpson, Shells of New England, p. -51, 1851. 



Massachusetts Bay to Florida, and along the northern shores of the 

 Gulf of Mexico to Texas. Yery common on the shores of Vineyard 

 Sound, Buzzard's Bay, Long Island, and Long Island Sound. Fossil in 

 the Post-Pliocene of South Carolina. 

 Alexia myosotis Pfeifi'er. Plate XXY, fig. 168. (p. 383.) 



Pfeiffer, Mon. Auric. Viv., p. 148, (t. Binney) ; Gould, Invert., ed. ii, p. 463, figs. 

 718, 719. Auricula myosotis Draparnaud, Tabl. Moll. Fr., p. 53. Auricula dcn- 

 ticulata Gould, Invert., ed. i, p. 199, fig. 129 {non Moutfort). 



New Jersey to Xova Scotia; also on the Atlantic and Mediterranean 

 coasts of Europe. It is common at Eastport, Maine ; Portland, Maine ; 

 and at the mouth of West Eiver, near Xew Haven, Connecticut; also 

 near New York City. 



TECTIBRANCHIATA. 



Bulla solitaria Say. Plate XXY, fig. 161. (p. 37L) 



Journal Acad. Nat. Sciences, Philadelphia, vol. ii, p. 245, 1822; Binney's Say, p. 

 84 ; Gould, Invert., ed. i, p. 162, fig. 92; ed. ii, p. 222, fig. 513. Bulla insculpta 

 Totten, American Journ. Science, vol. xxviii, p. 350, fig. 4, 1835. 



Massachusetts Bay to South Carolina. Common in the muddy lagoons 



